package master;

/**
 * @author chenyw
 * @date 2022/7/27 16:29
 */
public class TreeNode {
    int val;
    TreeNode left;
    TreeNode right;
    public TreeNode() {

    }
    public TreeNode(int val) {
        this.val = val;
    }
    public TreeNode(int val, TreeNode left, TreeNode right) {
        this.val = val;
        this.left = left;
        this.right = right;
    }
}
